TY - GEN
T1 - MISMATCHED FILTERS APPLIED TO POLYPHASE CODES AMPLITUDE-PHASE COMPENSATION
AU - Jiang, Ruichao
AU - Song, Yuanyuan
AU - Zeng, Tao
N1 - Publisher Copyright:
© 2020 IET Conference Proceedings. All rights reserved.
PY - 2020
Y1 - 2020
N2 - Recently polyphase codes have drawn significant attention since they have a high degree of design freedom and low autocorrelation sidelobes. Nevertheless, in practical radar system, the transmitted polyphase signals could be greatly distorted due to the non-ideal circuits. Therefore, it’s necessary to compensate the distorted signal to improve the practicability of polyphase codes. A traditional compensation procedure is to compare the transmitted signal with a reference signal, and compensate the distortion in the frequency domain. In this paper, the mismatched filter processing is adopted to reduce the pulse compression sidelobes and realize the amplitude-phase compensation of the distorted signals. According to the processing results of the experimental data, the mismatched filter processing method can reduce the sidelobe by about 15dB.
AB - Recently polyphase codes have drawn significant attention since they have a high degree of design freedom and low autocorrelation sidelobes. Nevertheless, in practical radar system, the transmitted polyphase signals could be greatly distorted due to the non-ideal circuits. Therefore, it’s necessary to compensate the distorted signal to improve the practicability of polyphase codes. A traditional compensation procedure is to compare the transmitted signal with a reference signal, and compensate the distortion in the frequency domain. In this paper, the mismatched filter processing is adopted to reduce the pulse compression sidelobes and realize the amplitude-phase compensation of the distorted signals. According to the processing results of the experimental data, the mismatched filter processing method can reduce the sidelobe by about 15dB.
KW - AMPLITUDE-PHASE COMPENSATION
KW - MISMATCHED FILTER
KW - RANDOM POLYPHASE CODES
UR - http://www.scopus.com/inward/record.url?scp=85174657639&partnerID=8YFLogxK
U2 - 10.1049/icp.2021.0827
DO - 10.1049/icp.2021.0827
M3 - Conference contribution
AN - SCOPUS:85174657639
VL - 2020
SP - 264
EP - 269
BT - IET Conference Proceedings
PB - Institution of Engineering and Technology
T2 - 5th IET International Radar Conference, IET IRC 2020
Y2 - 4 November 2020 through 6 November 2020
ER -